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Hioki PW8001 Power Analyzer

Hioki PW8001 Power Analyzer

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HIOKI sets a new industry standard with its all-new PW8001 Power Analyzer. With up to eight modular power channels, it is the only bench power analyzer on the market with 1500 V DC CAT II inputs, fulfilling the requirements of today’s PV applications. At the same time, high bandwidth and industry-leading current sensors allow for unrivalled accuracy for example when developing state-of-the-art SiC and GaN applications.

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Hioki PW8001 Power Analyzer

HIOKI sets a new industry standard with its all-new PW8001 Power Analyzer. With up to eight modular power channels, it is the only bench power analyzer on the market with 1500 V DC CAT II inputs, fulfilling the requirements of today’s PV applications. At the same time, high bandwidth and industry-leading current sensors allow for unrivalled accuracy for example when developing state-of-the-art SiC and GaN applications.

Best protection against external noise is guaranteed because of the highest Common Mode Rejection Ratio in the industry for both power analyzer and current sensors designed by HIOKI. In addition, the 15 MHz sampling rate and 18-bit A/D conversion result in extremely accurate measurements and waveform reproducibility.

As unique feature, the automatic phase shift correction function of the PW8001 allows for accurate reactor or transformer loss measurements at high switching frequencies. Optional four motor inputs enable the complete analysis of multiple motor systems like drones, robotics or in-wheel motor drive systems of electric vehicles.

PW8001 Key Features & Specifications:

  • Up to 8 modular power channels
  • Unrivalled accuracy for high currents at high frequencies
  • Best protection against external noise
  • Automatic phase shift correction
  • 15 MHz sampling rate and 18-bit A/D conversion
  • 1500 V DC CAT II voltage inputs

Features of the PW8001

1. Custom Power Analyzer through 2-tiered Modules: World Class Accuracy, Wideband Power Measurement, and High Voltage Measurement

In order to attain world class accuracy, accuracy of DC (direct current) of 0 Hz frequency, commercial power accuracy (wall outlet) of 50/60 Hz frequencies and accuracy of higher frequencies must all be high. This is because most devices run on many frequencies. However, most power measurement devices focus on accuracy of either DC or the commercial frequencies (50/60 Hz). The PW8001 (module U7005*2) however achieves world class basic power accuracy of ±0.03% for commercial (50/60 Hz), and a DC (0 Hz) power accuracy of ±0.05% to provide more accuracy than other standard power analyzers in the market. In addition, this flagship model offers greater accuracy than competitors in measuring high-frequency power. The 5 MHz measurement bandwidth (increased from the previous model’s 2 MHz) is more important for SiC and GaN, the next-generation semiconductors increasing in use worldwide. The high accuracy in this overall wide frequency range makes it possible for users to accurately evaluate power conversion efficiency (or loss) of even more than 99% for power electronics equipment. In today’s technology where equipment are becoming more efficient and high-frequency, Hioki-level accuracy is essential to further improve performance.

Furthermore, this power analyzer gives the choice of two input modules with different measurement accuracy and measurement frequency bandwidth specs. Up to 8 input modules of the user’s choice (U7005 or U7001) can be freely combined into a single PW8001. The high-end module, U7005 (with aforementioned accuracy specs) and the more affordable module U7001 (basic power accuracy of ±0.07% and DC power accuracy of ±0.07% for commercial frequencies) allow for the optimum measuring system best suited for the user’s situation. Although the U7001 is marketed as the “affordable model,” its accuracy is nearly equivalent to that of the market-leading predecessor.
In addition, the new “affordable model” (U7001) allows for high voltage measurement of DC power. Rated at “DC 1500 V Category II” (CAT II), it can safely and accurately evaluate power supply equipment with a 1500 V DC voltage.

2. High Flexibility from a Revolutionary 8 channels and a Wide Array of Functions

The Power Analyzer allows the user to further tailor the analyzer to his/her specific application through its

revolutionary number of 8 channels and many optional functions.
By providing a revolutionary number of 8 channels, Hioki’s single Power Analyzer can measure power efficiency of 2 independent 3-phase inverters, by comparing the power of each inverter’s single DC line and 3 AC lines. Comparable competitors only provide up to 7 channels, making this impossible without Hioki.
In addition to the standard 8 of 2-tiered modules, we have also prepared a function that can analyze four motors with just one Power Analyzer PW8001 by simultaneously measuring four sets of torque and rotation speed. This is very useful for evaluating complex systems such as in-whe

el motors or electric AWD (all-wheel drive) systems installed in EVs in which individual wheels are controlled by several motors. (This Motor Analysis input is an optional function that must be specified when ordering.)
Another function that adds flexibility is the Optical Link Interface*2 function. In order to respond to the increasing scale and complexity of power measurement, we have made it possible to measure up to 16 channels by connecting two PW8001s with optical cables. By combining two units, measured data is aggregated into one of the PW8001s in real time. This enables display, analysis, and recording for all 16 channels to be done on one device. (The Optical Link Interface*2, is an optional function that must be specified when ordering.)

3. High Accuracy Made Easy with the New Current Sensor Interface

High frequency power measurements are notorious for poor accuracy due to the higher alternating frequency of the electricity which causes current sensor’s accuracy to decline. However, Hioki’s unparalleled Phase Shift function can use Hioki’s fine-tuned current sensors to offset this phenomena. This is made possible only because Hioki makes both its power analyzers and sensors in-house, giving Hioki a unique place in the market. This function makes efficiency measurement of inverters and loss measurement of high frequency reactors and transformers perfect for Hioki’s Power Analyzer. Until now, Hioki sensors simply required input of the sensor model’s phase error digits. The new current sensor interface in the Power Analyzer PW8001 and new sensors now make Phase Shifting incredibly easy. The Analyzer simply adjusting everything automatically as soon as the sensor is plugged in. This maximizes the performance of the current sensor without the need for tedious settings when preparing for measurement.

4. Streamline Automotive Development by Outputting Measurement Data as a CAN/CAN-FD Automotive Control Signal

In systems used in developing vehicles, the in-vehicle communication protocol of CAN or CAN-FD is widely used to aggregate data. Until now, CAN/CAN-FD signals and power analyzers’ analog output signals were collected simultaneously, then later all data were integrated into a data logger. However, analog output signals pose problems such as repeatability degradation at the time of integration and limited number of outputs. To solve these problems, the PW8001 offers an optional function that outputs the measured power data as a CAN signal. This allows data to integrate many channels without degradation of power measurement accuracy for simultaneous evaluation of many behaviors of a vehicle. (This CAN/CAN-FD Interface*2 is an optional function that must specified when ordering.)

Features of the Sensors CT6872 and CT6873

1. Next-Generation Semiconductors Power Evaluation

Next-generation semiconductor power inverters, such as SiCs and GaNs, often convert power into extremely high frequencies, too high for accurate measurement by non-Hioki sensors. The Hioki Current Sensors CT6872 and CT6873 are able to measure these frequencies very accurately with frequency bandwidths of up to 10 MHz and 5 MHz, respectively (a surprising 10-times increase from their previous models). In addition, these sensors are more accurate than their predecessor models with market leading accuracy by improving their amplitude/current accuracy and noise resistance (Common Mode Noise Rejection Ratio). These Hioki Current Sensors with such dramatically advanced performance, combined with the Power Analyzer PW8001’s excellent high-frequency accuracy, enables accurate and highly reproducible power supply evaluations even in the high-speed switching power supplies equipped with next-generation semiconductors such as SiCs and GaNs.

Main Applications/Customers of PW8001

  • Evaluation of power conversion efficiency and loss in research & development and production processes
  • Manufacturers of EVs, FCVs (fuel cell vehicles), other automobiles, and their chargers
  • Manufacturers of equipment for renewable energy generation such as wind and solar

 

Link: Hioki PW8001 Power Analyzer

Hioki PW8001 Power Analyzer

Hioki PW8001 Power Analyzer datasheet

Additional information

Producent

Hioki

Produktkategori

Power Meters

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